Water gauge



J. M. HOGL WATER GAUGE Sept. 14 1926.

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UNITED. STATES JOSEPH M; nooI., or WHEELING, `WEST VIRGINIA.

WATER GAUGE.

Application med May 3,

This invention relates tewater gauges', and more particularly to what I term a double tube glass water gauge.

One of the main objects of the inventionV is to provide a water gauge of simple and eiicient construction which can be produced and applied at relatively small' cost. A further object is to provide a gauge so constructed as to insure that the glass water tube `vill at all times be clear so as to permit the water column to be readily viewed.

oother object is to provide simple and eflicient means for washing out the gauge so to remove particles of foreign materials therefrom. Another object is to provide simple and efficient means whereby the glass gauge may be swabed out, when necessary,

to reni-ove any film or coating of substances l which may collect on the inner surface oit the glass tube. Further objects will appear 'from the detail description.

In the drawings z- Fig. 1 isa central vertical` section through the gauge; i y Fig. 2 a central vertical section through the gauge taken-in a plane at right angles to Fig. 1. f p

The gauge includes an upper head 1 and a lower head2 which may betermed the' steam head and the water head, respectively, 'for convenience of. description. The head V1 is provided with a central nipple 3 connected by coupling 4i, or in any other suitahle. o: prefered manner7 to a nipple 5 which communicates with the steam space. of a.

boiler in connection with which the gauge is used. Nipple 3 communicates with the head 1 by means of an opening or port 6 which is provided with a. valve seat 7 for reception of arvalve'S .provided with a stem 9 which threads through a nipple 10 extending from the opposite side of head 1 to, and in alignment with, nipple 3. A suitable operatingr wheel 10a is secured on the outer end of valve stem 10. A packing gland 11 is positioned about the outer portion of valve stem 9 so as to form a fluid tightclosure about the saine, as is known. This provides simple and efficient means for. controlling communication between the steam spacer ot the boiler and head 1. y

Head 2 is constructed similarly to head 1 and is connected by means of a nipple 3 and coupling 4a to nipple 5a which communicatcs with the water Space of the boiler. This head is also provided with a valve S vtion,between head 2 and nipple 3a.

per end of tube 27.

1924. seriai No. 710,880.

similar to the valveA mounted in head 1 and including a stem 9a threaded through packing gland 10 and provided at its outer end with a wheel 10 for controlling communica- Each the heads l and 2 is provided, adjacent to one end,.with a. nipple'12 which is directed toward the other head, and each head is further provided adjacent to its other end with a similarly directed nipple 13. or'r' the heads is valso pro-videdwi-th two'nipples 14e 15 which are vdisposed at the opposite side of the head to nipples 12 and and in alignment therewith. The nipples eceivethe end portions of a brass tube with the upper end of which contacts a head 1. This plug is provided, in its lower end portion, with a recess 18 with which communicate a plurality of openings 19 extending through the plug and positioned closely adjacent to the lower end thereof.

As will bev noted more clearly from Fig. 2,V

the upper -end of tube'16 is flush 'with the inner face' 'of the bottom of head1 and the openings 19 are positioned closely adjacent to the bottom of this head. The lower end portion ot tube l'extends through nipple 12 or. head 2 and is. securedtherein bya EachV threaded through the upper nippleV ars packing gland 2() which also serves tofo'rm ya fluid tight closure about the tube7 asimilar paci-:ing gland 21 .being mounted on nipple 12 olheadl 1. The lower end of tube 16 is`V bored. to provide a valve seat 22or reception of a valve 23 provided at the upper endv of a hollow stem 24 threaded'through neck'.

Osa

o of a valve casting25 vand provided atV its lower endwith a hand wheel 24', this neclrv being threaded through nipple 14.

Stem 24 is provided .with a plurality hof' ducts 24a which communicate with bore 24:" Y

of stem 24. adjacent to the lower end thereof, this bore extending approximately one-half or" the length of the valve stem. A petcock 26 communicates with casing 25 and provides means for permitting escape of water 'from .the casing when desired. A glass tube head 1. Head 2 is provided, at the lowerVV end of nipples 13, with an inwardly projecting shoulder 13 which forms a seat for the lower end of glass tube 27. A closure plug 29 is threaded into nipple 15 of head 2 and acts to normally close this nipple, this plug, for convenience of operation, being provided with a stem 30 on the lower end of which is secured a hand wheel 31. As will be readily understood, packing glands and gaskets are employed wherever necessary or desirable and these members may be of any suitable or preferred construction In practice the gauge is applied to a boiler in a well known manner, the valves of bothheads 1 and .2 being opened so as to obtain equalization of pressure. The water in glass tube 27 is readily visible to indicate the water level inthe boiler. If the gauge should become obstructed or the glass tube 27 becomes soiled, the gauge may be readily washed out. To wash the gauge out the water valve in head 2 is first closed, valve 23 is turned into closed position so as to seat in the lower end of brass tube 16, and the steam valve of head 1 is then closed after which the water valve of head 2 is opened, peteojlr 26 being also opened. rllhis permits hot water to flow upwardly through tube 27 into head 1 then down through tube 16, valve 3 and valve stem 24 into valve casing 25 through the ports 24s. This water escapes from valve casing 25 by means of petcocl 26.V This provides simple' and efficient means whereby the gauge can be readily' washed out to remove any film or coat-ing which may collect on the inner face of glass tube 27. By having the ports 2821 of plug 28 positioned adjacent to the top of head 1, and the ports 19 of plug 18 adjacent to the bottom of this head, any sediment or otherforeignmaterials which may be deposited in head 1 will escape through tube 16. rlhis avoids, to a great extent, clouding or coating of-glass tube 27 and also eliminates danger of clogging or stoppage of this tube. After the gauge has been thoroughly washed out in the manner stated, petcoclr 26 is closed, valve 23 is opened and the steam valve of head 1 is opened, the steam and water valves being both'adjusted properly to insure best operation of the gauge. VIn the event that the inner'surface of tube 27 becomes coated with a film or covering as might occur when using water containing excessive amounts of foreign materials, it may become necessary to swab out the tube with chemicals prepared for this purpose. rlhis may be readily done by closing both the steam valve and the water valve and opening petcock 26, after which plug 29 is removed and tube 27 is swabbed out. After the tube has been properly cleaned, plug 29 is replaced andpetcock 26 is closed, the water and steam -valves being then opened to permit the water to flow into the gauge. This may be quickly and easily done without interfering to any appreciable extent with the use of the gauge or effecting its operation.

lVhat l claim is ln a water gauge, an upper head, a lower head, control valves foi` the respective heads, two tubes establishing communication between the heads, a hollow member extending from the top of the upper head and openings positioned adjacent to the .bottom wall of the upper head, a similar member contacting with the upper end of the other tube and being provided with openings positioned adjacent to the top wall of the upper head, a valve casing secured to the lower head in alignment with one ofthe tubes, an outlet valve threaded through said casing for establishing and cutting olfy communication between saidV first mentioned tube and the lower head, the'outlet valve-being provided with a bore` extending from its inner end and with openings extending from this bore and establishing communication between the same and the valve casing, and an outlet member communicating with the valve casing. f

in testimony whereof I affix my signature.

,rosier-H M. Hoer. 

